(0 17 15)(1 18 13)(2 20 4)(3 7 5)(6 12 8)(9 16 14)(10 19 11)
ALLOWS (11/8)-SEQUENCE
1: (15 16 17)
(0 17 14 9 16)(1 18 13)(2 20 4)(3 7 5)(6 12 8)(10 19 11)(15)
2: (0 9 16)
(0)(1 18 13)(2 20 4)(3 7 5)(6 12 8)(9 17 14)(10 19 11)(15)(16)
3: (1 18 13)
(0)(1)(2 20 4)(3 7 5)(6 12 8)(9 17 14)(10 19 11)(13)(15)(16)(18)
4: (9 17 14)
(0)(1)(2 20 4)(3 7 5)(6 12 8)(9)(10 19 11)(13)(14)(15)(16)(17)(18)